kan-khóo-sim艱苦心

sad

sad; depressed; painful (in one's heart)

English Wiktionary, “艱苦心” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E8%89%B1%E8%8B%A6%E5%BF%83 · confidence: High (Wiktionary, PH/Quanzhou/Jinjiang)